Interference grating with an arbitrary transparent-to-opaque groove ratio

Mohammad Taghi Tavassoly

doi:10.1117/12.48665

1 December 1991 Interference grating with an arbitrary transparent-to-opaque groove ratio

Mohammad Taghi Tavassoly

Proceedings Volume 1527, Current Developments in Optical Design and Optical Engineering; (1991) https://doi.org/10.1117/12.48665
Event: San Diego, '91, 1991, San Diego, CA, United States

Abstract

A new approach to the fringe formation in the interference of light incident on a plane parallel plate is introduced. It is shown that for a particular angle of incidence, which depends only on the refractive index, the interfringes are minimum. It is proved that in an angular interval of few arc degrees around this particular incident angle the interfringes are equal to a high accuracy. It is shown that this feature can be exploited to produce an interference grating with an arbitrary transparent-to-opaque groove ratio, and to measure the wavelength of light and the fine structures of a spectrum with a precision considerably higher than can be obtained in the other similar interferometric methods.

Citation Download Citation

Mohammad Taghi Tavassoly "Interference grating with an arbitrary transparent-to-opaque groove ratio", Proc. SPIE 1527, Current Developments in Optical Design and Optical Engineering, (1 December 1991); https://doi.org/10.1117/12.48665

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